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FrameDumpingEncoder: relax threading assumptions.

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The wrapped encoders may sometimes shift the callback
threads, so SequenceChecker is not legits for this case.

Replaced with a Mutex.

Bug: b/296242528
Change-Id: I7b2e6e630563246d5214ff4f18c6855ba7869a92
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/317460
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Markus Handell <handellm@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40609}
This commit is contained in:
Markus Handell 2023-08-23 12:44:18 +02:00 committed by WebRTC LUCI CQ
parent c08df4bdca
commit 1692e54146
1 changed files with 17 additions and 11 deletions
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24
video/frame_dumping_encoder.cc
View file

@ -36,8 +36,11 @@ class FrameDumpingEncoder : public VideoEncoder, public EncodedImageCallback {
std::string output_directory)
: wrapped_(std::move(wrapped)),
output_directory_(output_directory),
origin_time_micros_(origin_time_micros) {
sequence_checker_.Detach();
origin_time_micros_(origin_time_micros) {}
~FrameDumpingEncoder() override {
MutexLock lock(&mu_);
writers_by_simulcast_index_.clear();
}
// VideoEncoder overloads.
@ -77,18 +80,20 @@ class FrameDumpingEncoder : public VideoEncoder, public EncodedImageCallback {
// EncodedImageCallback overrides.
Result OnEncodedImage(const EncodedImage& encoded_image,
const CodecSpecificInfo* codec_specific_info) override {
RTC_DCHECK_RUN_ON(&sequence_checker_);
{
MutexLock lock(&mu_);
GetFileWriterForSimulcastIndex(encoded_image.SimulcastIndex().value_or(0))
.WriteFrame(encoded_image, codec_settings_.codecType);
}
return callback_->OnEncodedImage(encoded_image, codec_specific_info);
}
void OnDroppedFrame(DropReason reason) override {
RTC_DCHECK_RUN_ON(&sequence_checker_);
callback_->OnDroppedFrame(reason);
}
private:
std::string FilenameFromSimulcastIndex(int index) {
std::string FilenameFromSimulcastIndex(int index)
RTC_EXCLUSIVE_LOCKS_REQUIRED(mu_) {
char filename_buffer[1024];
rtc::SimpleStringBuilder builder(filename_buffer);
builder << output_directory_ << "/webrtc_encoded_frames"
@ -96,7 +101,8 @@ class FrameDumpingEncoder : public VideoEncoder, public EncodedImageCallback {
return builder.str();
}
IvfFileWriter& GetFileWriterForSimulcastIndex(int index) {
IvfFileWriter& GetFileWriterForSimulcastIndex(int index)
RTC_EXCLUSIVE_LOCKS_REQUIRED(mu_) {
const auto& it = writers_by_simulcast_index_.find(index);
if (it != writers_by_simulcast_index_.end()) {
return *it->second;
@ -110,10 +116,10 @@ class FrameDumpingEncoder : public VideoEncoder, public EncodedImageCallback {
return *writer_ptr;
}
SequenceChecker sequence_checker_;
std::unique_ptr<VideoEncoder> wrapped_;
std::map<int, std::unique_ptr<IvfFileWriter>> writers_by_simulcast_index_;
std::unique_ptr<IvfFileWriter> writer_;
Mutex mu_;
std::map<int, std::unique_ptr<IvfFileWriter>> writers_by_simulcast_index_
RTC_GUARDED_BY(mu_);
VideoCodec codec_settings_;
EncodedImageCallback* callback_ = nullptr;
std::string output_directory_;